[Form 4] Isabella Bank Corporation Common stock Insider Trading Activity

Rhea-AI Filing Summary

Brian Roy Sackett, a director of Isabella Bank Corp (ISBA), reported a purchase of 26 common shares on 09/02/2025 at a price of $33.13 per share. After the transaction, the filing shows he beneficially owns 3,733.1224 shares in total. The filing notes the reported total includes shares acquired through the issuer's quarterly dividend reinvestment program. The Form 4 was filed as a single reporting-person filing and executed by power of attorney on 09/04/2025.

Positive

• Insider purchase reported by a director, indicating continued personal ownership
• Filing discloses dividend reinvestment as part of total beneficial ownership
• Form signed and filed (power of attorney executed) showing procedural compliance

Negative

• None.

Insights

Financial Analyst

TL;DR: A small insider purchase: director acquired 26 shares at $33.13, leaving total holdings of 3,733.1224 shares.

The transaction is a routine, non-derivative acquisition executed via open-market purchase and supplemented by dividend reinvestment. The size of the purchase—26 shares—is immaterial to company capitalization and unlikely to affect valuation metrics. It does, however, confirm continued insider participation in shareholding.

Corporate Governance Expert

TL;DR: Disclosure is timely and complete for a single reporting person; transaction appears compliant with Form 4 requirements.

The Form 4 identifies the reporting person as a director, specifies transaction date and price, and includes an explanatory remark about dividend reinvestment. The filing was signed by power of attorney, which is explicitly shown. No omissions or ambiguous entries are apparent within the disclosed fields.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sackett Brian Roy

(Last) (First) (Middle)

6402 80TH AVENUE

(Street)

MECOSTA MI 49332

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ISABELLA BANK CORP [ ISBA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
common	09/02/2025		A		26	A	$33.13	3,733.1224(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes shares acquired through quarterly dividend reinvestment.

Remarks:

	/s/ Jerome E. Schwind, By Power of Attorney	09/04/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Isabella Bank (ISBA) director Brian Roy Sackett report on Form 4?

He reported an acquisition of 26 common shares on 09/02/2025 at $33.13 per share and beneficial ownership of 3,733.1224 shares.

Does the Form 4 indicate how some shares were acquired for ISBA insider?

Yes. The filing states the total includes shares acquired through the issuer's quarterly dividend reinvestment program.

When was the Form 4 for ISBA filed or executed?

The signature block shows the form was executed by power of attorney on 09/04/2025.

Was this a joint filing or one reporting person on the ISBA Form 4?

The Form indicates it was filed by one reporting person.

What type of securities transaction was reported by the ISBA insider?

A non-derivative acquisition of common stock (open-market purchase) is reported.